3 
N. America = 2227 g. . 
PAGE 
62 
Canada = 2227 gh 
63 
United States = 2227 gf 
63 
N.E. United States = 2227 
gg 
63 
S.E. United States = 2227 gh .. 
63 
W. United States = 2227 gi. . 
63 
Mexico = 2227 gl 
63 
0. America, S. America, W. Indies = 2227 h 
63 
Australasia = 2227 i . . 
64 
Atlantic Islands = 2227 1 
64 
Indian Ocean = 2227 m 
64 
Pacific — 2227 n 
64 
(b) Fossil : — 
General 
64 
Cainozoic 
65 
Post-Tertiary 
65 
Tertiary 
66 
Mesozoic 
67 
Cretaceous . . 
68 
Jurassic 
69 
Triassic 
70 
Palaeozoic . . 
71 
Permian 
71 
Carboniferous 
71 
Devonian 
72 
Silurian 
72 
Ordovician . . 
72 
Cambrian . . 
73 
, Systematic Index = 2231: — 
General 
73 
Amphineura . . 
74 
Gastropoda 
74 
Prosobranchia 
74 
Heteropoda 
96 
Opisthobrancliia 
96 
Pteropoda . . 
97 
Pulmonata . . 
98 
Scaphopoda . . 
106 
Lamellibrancliia 
107 
Cephalopoda . . 
120 
(n-10332 0 
d 18- 
-2 
